The baby bump starlet was seen bouncing back and forth on the asphalt while swinging racquets like a pro's pro!

Even her bump was playing…

…On the inside.

Here's what sources said about the Oscar winner:

“Reese was in a good mood. She was laughing with her girlfriends. They were all on the same side of the court and had tennis balls served at them by a trainer. It just seemed like a casual and relaxing practice game,”

We're so proud of Reese for staying in shape while she's preggers, and setting a good example for expectant mothers everywhere!

In a preview for a Sunday Today interview with NBC's Willie Geist, The Mindy Project star and executive producer joked that can't wait to be a parent because she'll finally "be able to openly criticize other parenting." Ha!

Jokes aside, Mindy revealed she's "really excited" about the next chapter of her life and the challenges that will come with it. She admitted: